| 摘要 |
Apparatus for fusion joining first and second axially abutted thermo-plastic piping system component connection ends that are in axial and circumferential alignment including apparatus for enabling the heating of a melt region in the proximity of the interface of the first and second piping system component connection ends at least to the material softening point of the thermo-plastic material of the melt region, and further including vacuummetric apparatus for vacuummetrically inducing outward translation of the melted material of the melt region.
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